Aerodynamic coefficients of plain and helically filleted twin circular cylinders for varying wind angles of attack

Antonio Acampora, Christos T. Georgakis

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Abstract

Moderate vibrations continue to be recorded on the Øresund Bridge twin-stay cables. System identification techniques have been applied to investigate the aerodynamic characteristics of the cables based on ambient vibration measurements. As might be expected, the measured aerodynamic damping ratios vary from those estimated through use of aerodynamic coefficients of single circular cylinders, as reported in literature. To address this issue, wind tunnel tests were performed on a 1:2.3 scale section model of the Øresund Bridge cables, with and without the presence of helical fillets. In this paper, the results of those tests are presented for varying wind angles of attack.
Original languageEnglish
Title of host publicationProceedings - European and African Conference on wind Engineering
Number of pages8
PublisherInternational Association for Wind Engineering (IAWE)
Publication date2013
Publication statusPublished - 2013
Event6th European and African Conference on Wind Engineering - Robinson College, Cambridge, United Kingdom
Duration: 7 Jul 201311 Jul 2013
Conference number: 6

Conference

Conference6th European and African Conference on Wind Engineering
Number6
LocationRobinson College
CountryUnited Kingdom
CityCambridge
Period07/07/201311/07/2013

Cite this

Acampora, A., & Georgakis, C. T. (2013). Aerodynamic coefficients of plain and helically filleted twin circular cylinders for varying wind angles of attack. In Proceedings - European and African Conference on wind Engineering International Association for Wind Engineering (IAWE). http://www.iawe.org/about/6th_eacwe_proceedings.html